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James K · October 3, 2011, 12:38 PM

By reducing mainspring tension, you might also get pierced primers if the firing pin momentum is not enough to prevent the primer from backing up into the firing pin hole in the bolt.

Jim

October 3, 2011, 12:38 PM	#4
James K Member In Memoriam Join Date: March 17, 1999 Posts: 24,383	By reducing mainspring tension, you might also get pierced primers if the firing pin momentum is not enough to prevent the primer from backing up into the firing pin hole in the bolt. Jim